From 720916a476f25f12156cdd7e07cbee4f48d1b1ad Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Tue, 21 Jan 2020 22:46:34 -0800
Subject: Implement server response

---
 .../org/traccar/protocol/BlueProtocolDecoder.java  | 33 ++++++++++++++++++++--
 .../traccar/protocol/BlueProtocolDecoderTest.java  |  3 ++
 2 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/src/main/java/org/traccar/protocol/BlueProtocolDecoder.java b/src/main/java/org/traccar/protocol/BlueProtocolDecoder.java
index 98a8ae565..61edcd101 100644
--- a/src/main/java/org/traccar/protocol/BlueProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/BlueProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2019 - 2020 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,11 +16,14 @@
 package org.traccar.protocol;
 
 import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
 import org.traccar.DeviceSession;
+import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
+import org.traccar.helper.Checksum;
 import org.traccar.helper.DateBuilder;
 import org.traccar.model.Position;
 
@@ -41,6 +44,28 @@ public class BlueProtocolDecoder extends BaseProtocolDecoder {
         return negative ? -coordinate : coordinate;
     }
 
+    private void sendResponse(Channel channel, int deviceIndex) {
+        if (channel != null) {
+
+            ByteBuf response = Unpooled.buffer();
+            response.writeByte(0xaa);
+            response.writeShort(2 + 1 + 1 + 6 + 1);
+            response.writeByte(0x86); // version
+            response.writeByte(0);
+
+            response.writeByte(6); // data length
+            response.writeByte(0xa4); // type
+            response.writeByte(0); // server index
+            response.writeByte(deviceIndex);
+            response.writeByte(0);
+            response.writeByte(0);
+
+            response.writeByte(Checksum.xor(response.nioBuffer(1, response.writerIndex() - 1)));
+
+            channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress()));
+        }
+    }
+
     @Override
     protected Object decode(
             Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
@@ -66,7 +91,7 @@ public class BlueProtocolDecoder extends BaseProtocolDecoder {
             int frameEnd = buf.readerIndex() + buf.readUnsignedByte();
 
             int type = buf.readUnsignedByte();
-            buf.readUnsignedByte(); // reference id
+            int index = buf.readUnsignedByte();
             buf.readUnsignedByte();
             buf.readUnsignedByte(); // flags
 
@@ -102,6 +127,10 @@ public class BlueProtocolDecoder extends BaseProtocolDecoder {
                 buf.readUnsignedByte(); // status 5
                 buf.readUnsignedByte(); // status 6
 
+            } else if (type == 0x84) {
+
+                sendResponse(channel, index);
+
             }
 
             buf.readerIndex(frameEnd);
diff --git a/src/test/java/org/traccar/protocol/BlueProtocolDecoderTest.java b/src/test/java/org/traccar/protocol/BlueProtocolDecoderTest.java
index 1d1716238..9f3254824 100644
--- a/src/test/java/org/traccar/protocol/BlueProtocolDecoderTest.java
+++ b/src/test/java/org/traccar/protocol/BlueProtocolDecoderTest.java
@@ -10,6 +10,9 @@ public class BlueProtocolDecoderTest extends ProtocolTest {
 
         BlueProtocolDecoder decoder = new BlueProtocolDecoder(null);
 
+        verifyPosition(decoder, binary(
+                "aa00550000813f6f840b840380001032000000002001030040008005ee1938113b26f300000000000000140114082833044d27602112030002000000b70000020000000000000000650000001601f4000000000000e4"));
+
         verifyPosition(decoder, binary(
                 "aa0055860080e3e79e0b840f800010320000000020010f0040008005ee197f113b26e800000000000000130c11091a2b005ac7a621120f0002000000b7000002000000000000001a3a0000000001f40000000000003f"));
 
-- 
cgit v1.2.3